Joseph A Pecar. The McGraw-Hill telecommunications factbook. New York: McGraw-Hill.
Chicago Style CitationJoseph A Pecar. The McGraw-Hill Telecommunications Factbook. New York: McGraw-Hill.
Cita MLAJoseph A Pecar. The McGraw-Hill Telecommunications Factbook. New York: McGraw-Hill.
Atenció: Aquestes cites poden no estar 100% correctes.